Results 11 to 20 of about 2,365 (174)
“Contextualized VGI” Creation and Management to Cope with Uncertainty and Imprecision [PDF]
ISPRS International Journal of Geo-Information, 2016 This paper investigates the causes of imprecision of the observations and uncertainty of the authors who create Volunteer Geographic Information (VGI), i.e., georeferenced contents generated by volunteers when participating in some citizen science ...
Gloria Bordogna +2 more
exaly +9 more sources
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 This paper presents a framework for considering quality control of volunteered geographic information (VGI). Different issues need to be considered during the conception, acquisition and post-acquisition phases of VGI creation.
C. C. Fonte +7 more
doaj +8 more sources
A Spatio-Temporal VGI Model Considering Trust-Related Information
ISPRS International Journal of Geo-Information, 2016 Over the past several years, volunteered geographic information (VGI) has expanded rapidly. VGI collection has been proven to serve as a highly successful means of acquiring timely and detailed global spatial data.
Yijiang Zhao +2 more
exaly +3 more sources
Towards a Protocol for the Collection of VGI Vector Data
ISPRS International Journal of Geo-Information, 2016 A protocol for the collection of vector data in Volunteered Geographic Information (VGI) projects is proposed. VGI is a source of crowdsourced geographic data and information which is comparable, and in some cases better, than equivalent data from ...
Peter Mooney +2 more
exaly +3 more sources
Enhancing VGI application semantics by accounting for spatial bias
Big Earth Data, 2019 Volunteered geographic information (VGI) is becoming an important source of geospatial big data that support many applications. The application semantics of VGI, i.e.
Guiming Zhang
exaly +2 more sources
Photon‐Counting CT for Diagnosing Vertical Root Fractures in Teeth With Metal Posts: An Ex Vivo Comparative Analysis With Four CBCT Devices [PDF]
International Endodontic Journal, Volume 59, Issue 4, Page 718-727, April 2026.ABSTRACT Objective Photon‐counting computed tomography (PCCT) represents a major innovation in X‐ray detection technology, offering improved signal efficiency and reduced electronic noise compared with cone‐beam computed tomography (CBCT), which can enhance image quality.
Renata M. S. Leal +7 more
wiley +2 more sources
Multiple sources of volunteered geographic information strengthen holistic estimates of lake visitation. [PDF]
PLoS ONELakes provide human societies with a wide range of cultural ecosystem services (CES), yet these benefits are rarely quantified. Site visitation is frequently used to assign CES values to recreational destinations, but traditional approaches for ...
Rachel M Fricke +2 more
doaj +2 more sources
A PageRank-based Reputation Model for VGI Data
Procedia Computer Science, 2016 AbstractQuality of data is one of the key issues in the domain of Volunteered geographic information (VGI). To this purpose, in literature VGI data has been sometime compared with authoritative geospatial data. Evaluation of single contributions to VGI databases is more relevant for some applications and typically relies on evaluating reputation of ...
Michele Melchiori
exaly +4 more sources
INSL3 Expression in Leydig Cells is a Biomarker for Immunocastration in Boars: Transcriptional Evidence [PDF]
Andrology, Volume 14, Issue 3, Page 782-795, March 2026.ABSTRACT Background Study aimed to obtain insights into physiological responses to immunocastration in pubertal boars by evaluating effects of alternative vaccination protocols and identifying a reliable immunocastration biomarker. Objectives It was hypothesized that the timing of gonadotropin‐releasing hormone (GnRH) suppression by immunocastration ...
Nina Batorek Lukač +6 more
wiley +2 more sources
GEOmedia, 2016 Availability of up-to-date geographic datasets, including the information voluntarily created by ordinary people, is crucial for disaster management in areas affected by catastrophic events and humanitarian crises. OpenStreetMap (OSM) is the most popular
Flavio Lupia +4 more
doaj +4 more sources